Matcher: no useless backtracking in group replace #190
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When encountering `${`, we do not move the read index forward to the `}`
and continue iterating on it again.
The reason it "worked" is two-fold:
- a group name contains alphanumeric or underscore, which won't trigger
special handling in the loop (only `\\` and `$` would)
- we had already moved `last` index past the closing `}`
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When encountering
${, we do not move the read index forward to the}and continue iterating on it again.The reason it "worked" is two-fold:
\\and$would)lastindex past the closing}Helps with #187.